Feeling drained? Move your body. Walk, squat, do pushups, lift weights, jog. Anything counts. Exercise triggers endorphin release, increases cerebral blood flow, and elevates dopamine and serotonin within minutes. Your brain fog clears because oxygen delivery to neurons jumps. Your prefrontal cortex lights up. Mitochondria in muscle cells signal your brain to wake up. This isn’t motivational talk, it’s biochemistry. Your body is built for movement, and it rewards you immediately when you use it.​​​​​​​​​​​​​​​​